Lenovo A3000h Service Manual

 
 
 
 
 
IdeaTab A3000 
Hardware 
Maintenance 
Manual 
 
  

 
 
 
Note: 
Befo
re using this information and the product it supports, be sure to read the general information under 
“ Notices ” on page 41 . 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
First Edition (May 2013) 
© Copyright Lenovo 2013. All rights reserved. 
LIMITED AND R

ESTRICTED RIGHTS NOTICE: If data or software is delivered pursuant a General 
Services Administration “GSA” contract, use, reproduction, or disclosure is subject to restrictions set 
forth in Contract No....

Contents 
 
About this manual........................................ iv 
Safety information ......................................... 1 General safety................................................. 2 Electrical safety ............................................... 3 
Safety inspection guide ................................... 5 
Handling devices that are sensitive to 
electrostatic discharge.................................... 6 Grounding requirements ................................. 6 
Safety...

About this manual 
This manual contains service and reference information for the following Lenovo 
IdeaPad product: Lenovo IdeaTab A3000 
Use this manual to troubleshoot problems. 
The manual is divided into the following sections: 
•  The common sections provide general information, guidelines, and safety  information required for servicing computers. 
•  The product-specific section includes service, reference, and product-specific  parts information. 
 
 
Important: 
This

 manual is intended only...

Safety information 
This chapter presents the following safety information that you need to get familiar 
with before you service an IdeaTab A3000 computer: 
••  “General safety ” on page 2 
••   “Electrical safety ” on page 3 
••  “ Safety inspection guide ” on page 5 
••   “Handling devices that are sensitive to electrostatic discharge ” on page 6 
•••   “Grounding requirements ” on page 6 
•••  “ Safety notices: multilingual translations ” on page 7 
•••  “ Laser compliance statement”  on page 14 
 
 
  

General safety 
Follow these rules below to ensure general safety: 
•  Observe a good housekeeping in the area where the machines are put during and after the maintenance. 
•  When lifting any heavy object:    1.  Make sure that you can stand safely without slipping. 
2.  Distribute the weight of the object equally between your feet. 
3.  Use a slow lifting force. Never move suddenly or twist when you attempt to lift it. 
4.  Lift it by standing or pushing up with your leg muscles; this action could...

Electrical safety 
Observe the following rules when working on electrical equipments. 
 
Important: 
Use o
nly approved tools and test equipments. Some hand tools have handles 
covered with a soft material that does not insulate you when working with live 
electrical currents. 
Many customers have rubber floor mats near their machines that contain small 
conductive fibers to decrease electrostatic discharges. Do not use such kind of 
mat to protect yourself from electrical shock. 
 
•  Find the room...

•  Always look carefully for possible hazards in your work area. Examples of these hazards are moist floors, nongrounded power extension cables, power surges, 
and missing safety grounds. 
•  Do not touch live electrical circuits with the reflective surface of a plastic dental  mirror. The surface is conductive; such touching can cause personal injury and 
machine damage. 
•  Do not service the following parts with the power on when they are removed from  their normal operating places in a machine: 
–...

Safety inspection guide 
The purpose of this inspection guide is to assist you in identifying potential unsafe 
conditions. As each machine was designed and built, required safety items were 
installed to protect users and service personnel from injury. This guide addresses 
only those items. You should use good judgment to identify potential safety 
hazards according to the attachment of non-Lenovo IdeaPad features or options 
not covered by this inspection guide. 
 
If any unsafe conditions are...

Handling devices that are sensitive to electrostatic discharge 
Any computer part containing transistors or integrated circuits (ICs) should be 
considered sensitive to electrostatic discharge (ESD). ESD damage can occur 
when there is a difference in charge between objects. Protect against ESD 
damage by equalizing the charge so that the machine, the part, the work mat, and 
the person handling the part are all at the same charge. 
 
Notes: 
1.  U
se product-specific ESD procedures when they exceed the...